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LIBMEMCACHED_CONFIGURATION(3) libmemcached LIBMEMCACHED_CONFIGURATION(3)

libmemcached_configuration - libmemcached Documentation

#include <libmemcached-1.0/memcached.h>
LIBMEMCACHED

memcached_st *memcached(const char *string, size_t string_length)

memcached_return_t libmemcached_check_configuration(const char *option_string, size_t length, char *error_buffer, size_t error_buffer_size)

Compile and link with -lmemcached

Libmemcached implements a custom language for configuring and modifying servers. By passing in an option string you can generate a memcached_st object that you can use in your application directly.
--SERVER=<servername>:<optional_port>/?<optional_weight>

Provide a servername to be used by the client. Providing a weight will cause weighting to occur with all hosts with each server getting a default weight of 1.

--SOCKET="<filepath>/?<optional_weight>"

Provide a filepath to a UNIX socket file. Providing a weight will cause weighting to occur with all hosts with each server getting a default weight of 1.

--VERIFY-KEY

Verify that keys that are being used fit within the design of the protocol being used.

--REMOVE_FAILED_SERVERS

Enable the behavior MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS.

--BINARY-PROTOCOL

Force all connections to use the binary protocol.

--BUFFER-REQUESTS

Please see MEMCACHED_BEHAVIOR_BUFFER_REQUESTS.

--CONFIGURE-FILE=

Provide a configuration file to be used to load requests. Beware that by using a configuration file libmemcached will reset memcached_st based on information only contained in the file.

--CONNECT-TIMEOUT=

Please see MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT.

--DISTRIBUTION=

Set the distribution model used by the client. See :manpage:`` for more details.

--HASH=

Set the hashing alogrthm used for placing keys on servers.

--HASH-WITH-NAMESPACE

When enabled the prefix key will be added to the key when determining which server to store the data in.

--NOREPLY

Enable "no reply" for all calls that support this. It is highly recommended that you use this option with the binary protocol only.

--NUMBER-OF-REPLICAS=

Set the nummber of servers that keys will be replicated to.

--RANDOMIZE-REPLICA-READ

Select randomly the server within the replication pool to read from.

--SORT-HOSTS

When adding new servers always calculate their distribution based on sorted naming order.

--SUPPORT-CAS

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SUPPORT_CAS

--USE-UDP

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_USE_UDP

--NAMESPACE=

A namespace is a container that provides context for keys, only other requests that know the namespace can access these values. This is accomplished by prepending the namespace value to all keys.

--POOL-MIN

Initial size of pool.

--POOL-MAX

Maximize size of the pool.

--TCP-NODELAY

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_TCP_NODELAY

--TCP-KEEPALIVE

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_TCP_KEEPALIVE

--RETRY-TIMEOUT=

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_RETRY_TIMEOUT

--SERVER-FAILURE-LIMIT=

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT

--SND-TIMEOUT=

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SND_TIMEOUT

--SOCKET-RECV-SIZE=

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE

--SOCKET-SEND-SIZE=

See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE

--POLL-TIMEOUT=

That sets the value of the timeout used by :manpage: poll().

--IO-BYTES-WATERMARK=

--IO-KEY-PREFETCH=

--IO-MSG-WATERMARK=

--TCP-KEEPIDLE

--RCV-TIMEOUT=

INCLUDE

Include a file in configuration. Unlike --CONFIGURE-FILE= this will not reset memcached_st

RESET

Reset memcached_st and continue to process.

END

End configutation processing.

ERROR

End configutation processing and throw an error.

memcached() returns a pointer to the memcached_st that was created (or initialized). On an allocation failure, it returns NULL.

const char *config_string= "--SERVER=host10.example.com --SERVER=host11.example.com --SERVER=host10.example.com"
memcached_st *memc= memcached(config_string, strlen(config_string);
{
 ...
}
memcached_free(memc);


To find out more information please check: http://libmemcached.org/

memcached(1) libmemcached(3) memcached_strerror(3)

Brian Aker

2011-2013, Brian Aker DataDifferential, http://datadifferential.com/
February 9, 2014 1.0.18

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